/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#import
#define SCALABLE_MALLOC_ADD_GUARD_PAGES (1 << 0)
// add a guard page before and after each VM region to help debug
#define SCALABLE_MALLOC_DONT_PROTECT_PRELUDE (1 << 1)
// do not protect prelude page
#define SCALABLE_MALLOC_DONT_PROTECT_POSTLUDE (1 << 2)
// do not protect postlude page
#define SCALABLE_MALLOC_DO_SCRIBBLE (1 << 3)
// write 0x55 onto free blocks
extern malloc_zone_t *create_scalable_zone(size_t initial_size, unsigned debug_flags);
/* Create a new zone that scales for small objects or large objects */
/***** Private API for debug and performance tools ********/
#define scalable_zone_info_count 9 // maximum number of numbers
extern void scalable_zone_info(malloc_zone_t *zone, unsigned *info, unsigned count);
/* Fills info[] with some statistical information:
info[0]: number of objects in use
info[1]: number of bytes in use
...
*/